I would suggest useing the reg xtp's instead of the xtp mag.
The bullet I'm talking about is a plain-jane XTP, and not the MAG version... it's a 240gr XTP sold by TC. They just call it 'magexpress' for some reason, but it is definitely not the harder XTP MAG that Hornady sells.
It's cheap, but it works. I wish I could find these TC packaged XTPs in 300gr... I think more weight is better.
Doe from last night.. bullet shattered multiple sholder bones, I don't think it made it into chest (gutted deer is hanging, I'll finish today). Did the trick, though. I'll see if I can find the bullet/pieces of it.